thats the problem with some patents. there are douche bag companies out there who draw up something on paper and then say they own it, which I think is rediculous. The rumble feature is a spinning weight, there is nothing to be owned about that. It has been done in acient times with a rock on a freakin stick, however because of the atent:, some company can get a crayon, scribble on paper, copywrite the idea even if they cant make it possible, and say they own it. Its retarded. I hope microsoft destroys immersion, which is what seems to be happening, Microsoft is vicious, they will take your company out from under you and then dismantle it. Poof no more company. I hate them for killing Digital anvil, but I will love them for killing Immersion.